Anigan · Period Underwear
The Period Company Bikini Heavy Flow Women's
Lower concern, period products rarely contain PFAS, but no public disclosure from brand.
Period-care products like this bikini typically use cotton, viscose, and cellulose in absorbent layers, materials not known to require or contain PFAS. Anigan offers no public statement on PFAS or material sourcing. No lab data or third-party verification is publicly available, so confidence is moderate rather than high.
Shop Anigan on Amazon →Material
Absorbent core (likely cotton/cellulose blend) with outer fabric layer
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The Period Company bikini uses an absorbent core layer (likely cotton, cellulose, or a blend) sandwiched between outer fabric, a design standard in period underwear. The core material is in direct contact with skin during menstruation, making material purity and dye safety primary concerns. Unlike single-use pads, reusable period underwear avoids chlorine bleaching and superabsorbent polymer (SAP) exposure typical of disposables. The outer layer is typically polyester or nylon blend, which itself is not a hazard class of concern in underwear contexts.
The brand's record and disclosure
Anigan (The Period Company) does not publicly disclose material certifications, chemical testing, or dye standards on their website or product labels based on available public information. The brand has no documented safety recalls, complaints to consumer safety agencies, or independent testing results in circulation. No third-party certifications (OEKO-TEX, GOTS) are advertised, which is common but not unusual in the period underwear market. Silent stance on PFAS and heavy metals in dyes suggests reliance on industry baseline practices rather than proactive sourcing transparency.
How it compares in its category
Period underwear as a category poses lower chemical risk than disposable pads because it avoids bleach, SAP, and single-use plastic packaging. Anigan sits in the mid-market segment; comparable brands (Thinx, Knix) also do not routinely publish full material test reports, though some offer OEKO-TEX certification or vegan/organic claims. The heavy-flow bikini design prioritizes absorption over minimalism, typically using thicker core layers which may increase dye contact but do not inherently increase hazard. Reusable products generally perform favorably against disposables on chemical footprint grounds.
If you buy it
Wash before first use in cool to warm water to remove loose dyes and manufacturing residue. Machine wash cold after each wear with mild detergent; avoid bleach, fabric softeners, and high heat drying, which can degrade synthetic fibers and trigger dye leaching. Replace when absorbent core shows reduced retention or visible wear (typically 1-2 years of regular use). Store dry to prevent bacterial and mold growth; do not soak overnight in water.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Azo dyes and synthetic colorants in cotton/cellulose core
Period underwear cores are often dyed to reduce visual staining; no specific testing of Anigan dyes is on record. Azo dyes can release aromatic amines under sweat and friction, though skin-contact risk in underwear is lower than in heavily worn textiles. Brand does not publish dye standards.
Heavy metals in dyes (cadmium, lead in pigments)
No recalls or complaints specific to Anigan period underwear involving heavy metal contamination have been reported. Risk is present in any dyed textile but typically minimal in finished products from established manufacturers meeting basic import standards.
Formaldehyde resins in fabric finish
Polyester and cotton blends may use formaldehyde-based wrinkle or shrink-resist finishes; The Period Company does not disclose finish chemistry. Formaldehyde off-gassing is typically mild in laundered underwear but skin-sensitive individuals should wash before wear.
Bacterial growth and odor-causing microbes if care instructions not followed
Period underwear, if not air-dried fully or stored damp, can harbor bacteria and mold. This is a use hazard, not a material hazard, but worth flagging. Regular washing and complete drying eliminate risk.
Microplastics shedding from synthetic outer layer
The polyester or nylon outer layer may shed microfibers during washing, though the degree is unmeasured for this specific product. This is an environmental concern rather than direct health hazard but relevant for long-term repeated use.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Period Underwear
JAMA Organic
LOLA Organic Cotton Period Underwear
Organic cotton with moisture-wicking gusset
Lower PFAS concern, organic cotton base with no waterproof claims, but brand doesn't explicitly address PFAS.
✓Verified PFAS-free by a third party
JAMA Organic
Organyc Certified Organic Cotton Disposable Period Underwear for Sensitive Skin
certified organic cotton with absorbent core
Lower concern, organic cotton base suggests minimal PFAS risk, but no explicit PFAS statement limits confidence.
✓Verified PFAS-free by a third party
Ruby Love
Women's Hipster Period Underwear
organic cotton with waterproof coating
Lower concern, PFAS-free verified; buy with confidence.
✓Lab test found no PFAS
More period underwear grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.